Experimental bifurcation analysis for hybrid testing methods 2

混合测试方法的实验分岔分析2

• 批准号: EP/F030711/1
• 负责人: David Wagg
• 金额: $ 38.44万
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FF030711%2F1
• 关键词: Experimental; bifurcation; analysis; hybrid; testing

In hybrid testing a critical system component (such as aircraft landing gear or bridge cable) is tested in the laboratory as if it were part of amuch larger system. The missing part of the larger system (the restof the aircraft or bridge) is simulated numerically on a computer andcoupled to the critical component via sensors and actuators.We plan to unlock the full potential of this numerical-experimentaltesting technique by developing novel mathematically-inspired toolsthat will allow one to automatically find and then track stabilityboundaries in relevant system parameters. This will constitute a majorstep forward from the present approach of changing a single parameterstep-by-step and then recording what happens. We propose to develop and implement these new methods for two mechanical test bed systems of fundamental relevance, namely, adriven pendulum-oscillator and a magneto-rheological damper system.

在混合测试中，一个关键的系统组件（如飞机起落架或桥梁电缆）在实验室中被测试，就好像它是更大系统的一部分。大系统的缺失部分（飞机或桥梁的其余部分）在计算机上进行数值模拟，并通过传感器和执行器与关键部件耦合。我们计划通过开发新颖的数学启发工具来释放这种数字实验测试技术的全部潜力，这些工具将允许人们自动发现并跟踪相关系统参数中的稳定性边界。目前的方法是一步一步地改变单个参数，然后记录发生的情况，这将是向前迈出的重要一步。我们建议为两个基本相关的机械试验台系统开发和实现这些新方法，即驱动摆振系统和磁流变阻尼系统。

项目成果

The Effect of Interface Delays in Substructuring Experiments

子结构实验中接口延迟的影响

• DOI: 10.1115/detc2011-47948
• 发表时间: 2011
• 作者: Marsico M

Interaction Between In-Plane and Out-of-Plane Cable Modes for a Cable-Deck System

电缆甲板系统的面内和面外电缆模式之间的相互作用

• DOI: 10.1115/detc2009-86590
• 发表时间: 2009
• 作者: Marsico M

Vibration Dynamics of an Inclined Cable Excited Near Its Second Natural Frequency

• DOI: 10.1142/s0218127414300249
• 发表时间: 2014-10
• 期刊: Int. J. Bifurc. Chaos
• 作者: V. Tzanov;B. Krauskopf;S. Neild

Control-based continuation of unstable periodic orbits

• DOI: 10.1115/1.4002101
• 发表时间: 2009
• 期刊: Journal of Computational and Nonlinear Dynamics
• 影响因子: 2
• 作者: J. Sieber;B. Krauskopf;D. Wagg;S. Neild;A. Gonzalez-Buelga